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Water Year
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COLUMBIA - BLO ROCK ISLAND DAM
(
RISW1
)
Forecasts for Water Year
2025
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2025-07-05
Issued:
2025-07-05
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
50242
50740
75
51934
67524
APR-JUL
43454
43686
75
43963
58256
JAN-SEP
58855
59352
76
60546
77708
JAN-JUL
52066
52298
76
52576
68440
OCT-SEP
67603
68100
78
69294
87167
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble:
2025-07-05
Issued:
2025-07-05
Hide Forecast
APR-SEP
50344
51057
76
52166
67524
APR-JUL
43537
43818
75
44250
58256
JAN-SEP
58956
59669
77
60779
77708
JAN-JUL
52149
52431
77
52863
68440
OCT-SEP
67704
68417
78
69526
87167
Reference
ESP with 0 Days QPF
Ensemble:
2025-07-05
Issued:
2025-07-05
Hide Forecast
APR-SEP
50376
51226
76
52920
67524
APR-JUL
43479
43985
76
44543
58256
JAN-SEP
58988
59839
77
61533
77708
JAN-JUL
52091
52598
77
53156
68440
OCT-SEP
67736
68586
79
70280
87167
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 198, 276, 327, 383, 419, 70, , 74
ESP10, 201, 279, 327, 388, 421, 73, , 77
ESP10, 203, 286, 329, 390, 425, 75, , 79
ESP10, 203, 285, 333, 389, 424, 78, , 82
ESP10, 206, 284, 338, 388, 423, 80, , 84
ESP10, 207, 285, 342, 387, 426, 82, , 86
ESP10, 212, 286, 342, 391, 427, 85, , 89
ESP10, 213, 288, 343, 392, 427, 87, , 91
ESP10, 206, 283, 336, 384, 420, 90, , 94
ESP10, 204, 284, 333, 382, 419, 92, , 96
ESP10, 200, 290, 329, 379, 416, 94, , 98
ESP10, 198, 290, 327, 378, 415, 97, , 101
ESP10, 203, 295, 333, 383, 422, 99, , 103
ESP10, 205, 299, 335, 386, 425, 102, , 106
ESP10, 205, 297, 332, 382, 423, 104, , 108
ESP10, 197, 290, 325, 379, 419, 106, , 110
ESP10, 194, 286, 324, 379, 415, 109, , 113
ESP10, 188, 279, 321, 375, 409, 111, , 115
ESP10, 185, 279, 327, 375, 410, 114, , 118
ESP10, 181, 276, 323, 374, 410, 116, , 120
ESP10, 183, 277, 324, 374, 411, 118, , 122
ESP10, 193, 285, 329, 392, 417, 121, , 125
ESP10, 187, 282, 326, 389, 415, 123, , 127
ESP10, 191, 288, 335, 395, 420, 126, , 130
ESP10, 193, 290, 335, 396, 421, 128, , 132
ESP10, 197, 298, 342, 399, 425, 130, , 134
ESP10, 205, 301, 347, 403, 431, 133, , 137
ESP10, 211, 305, 352, 408, 436, 135, , 139
ESP10, 209, 306, 350, 408, 435, 138, , 142
ESP10, 204, 305, 347, 406, 433, 140, , 144
ESP10, 188, 289, 337, 392, 424, 142, , 146
ESP10, 186, 290, 335, 387, 424, 145, , 149
ESP10, 186, 292, 336, 386, 430, 147, , 151
ESP10, 178, 286, 328, 377, 423, 150, , 154
ESP10, 175, 278, 320, 367, 414, 152, , 156
ESP10, 176, 274, 319, 366, 410, 154, , 158
ESP10, 184, 277, 321, 368, 415, 157, , 161
ESP10, 177, 266, 313, 360, 405, 159, , 163
ESP10, 175, 264, 313, 357, 404, 162, , 166
ESP10, 183, 279, 325, 367, 415, 164, , 168
ESP10, 199, 294, 339, 381, 429, 166, , 170
ESP10, 207, 296, 340, 391, 431, 169, , 173
ESP10, 201, 284, 335, 381, 422, 171, , 175
ESP10, 213, 289, 339, 380, 426, 174, , 178
ESP10, 177, 253, 301, 343, 390, 176, , 180
ESP10, 170, 245, 293, 334, 383, 178, , 182
ESP10, 179, 254, 301, 343, 391, 181, , 185
ESP10, 196, 267, 317, 355, 408, 183, , 187
ESP10, 201, 271, 321, 366, 414, 186, , 190
ESP10, 209, 278, 334, 371, 421, 188, , 192
ESP10, 206, 275, 327, 365, 417, 190, , 194
ESP10, 214, 285, 331, 373, 421, 193, , 197
ESP10, 221, 300, 342, 381, 425, 195, , 199
ESP10, 217, 296, 337, 382, 421, 198, , 202
ESP10, 212, 291, 330, 380, 417, 200, , 204
ESP10, 221, 294, 330, 382, 423, 202, , 206
ESP10, 216, 285, 325, 374, 415, 205, , 209
ESP10, 219, 286, 327, 379, 417, 207, , 211
ESP10, 222, 288, 334, 388, 420, 210, , 214
ESP10, 233, 296, 343, 396, 425, 212, , 216
ESP10, 234, 297, 345, 399, 427, 214, , 218
ESP10, 232, 296, 342, 397, 427, 217, , 221
ESP10, 234, 295, 344, 397, 426, 219, , 223
ESP10, 230, 284, 340, 389, 423, 222, , 226
ESP10, 233, 287, 349, 392, 431, 224, , 228
ESP10, 238, 289, 354, 394, 435, 226, , 230
ESP10, 230, 281, 347, 387, 432, 229, , 233
ESP10, 239, 289, 355, 393, 439, 231, , 235
ESP10, 238, 286, 351, 389, 436, 234, , 238
ESP10, 236, 295, 346, 382, 431, 236, , 240
ESP10, 252, 313, 364, 396, 446, 239, , 243
ESP10, 253, 319, 365, 399, 449, 241, , 245
ESP10, 247, 314, 363, 396, 446, 243, , 247
ESP10, 238, 302, 354, 388, 439, 246, , 250
ESP10, 228, 284, 345, 372, 425, 248, , 252
ESP10, 225, 274, 338, 364, 418, 251, , 255
ESP10, 230, 276, 343, 367, 424, 253, , 257
ESP10, 235, 283, 347, 372, 427, 255, , 259
ESP10, 235, 284, 347, 374, 426, 258, , 262
ESP10, 233, 282, 335, 364, 416, 260, , 264
ESP10, 230, 274, 326, 355, 407, 263, , 267
ESP10, 243, 279, 332, 360, 411, 265, , 269
ESP10, 241, 274, 326, 355, 405, 267, , 271
ESP10, 254, 286, 339, 368, 416, 270, , 274
ESP10, 247, 277, 334, 364, 410, 272, , 276
ESP10, 257, 286, 342, 374, 419, 275, , 279
ESP10, 254, 282, 335, 368, 414, 277, , 281
ESP10, 258, 287, 335, 370, 429, 279, , 283
ESP10, 258, 288, 335, 376, 430, 282, , 286
ESP10, 265, 294, 342, 381, 434, 284, , 288
ESP10, 268, 305, 350, 384, 433, 287, , 291
ESP10, 261, 298, 343, 376, 424, 289, , 293
ESP10, 266, 303, 352, 379, 429, 291, , 295
ESP10, 271, 310, 358, 385, 436, 294, , 298
ESP10, 269, 324, 360, 389, 437, 299, , 303
ESP10, 270, 325, 363, 389, 438, 301, , 305
ESP10, 273, 328, 364, 394, 440, 303, , 307
ESP10, 280, 335, 366, 396, 442, 306, , 310
ESP10, 289, 337, 368, 402, 443, 308, , 312
ESP10, 292, 337, 370, 407, 444, 311, , 315
ESP10, 294, 337, 373, 409, 445, 313, , 317
ESP10, 293, 337, 373, 409, 444, 315, , 319
ESP10, 292, 338, 375, 408, 442, 318, , 322
ESP10, 297, 342, 376, 410, 448, 320, , 324
ESP10, 300, 348, 379, 409, 449, 323, , 327
ESP10, 304, 359, 382, 412, 451, 325, , 329
ESP10, 304, 360, 383, 413, 451, 327, , 331
ESP10, 307, 361, 385, 415, 453, 330, , 334
ESP10, 314, 368, 390, 422, 457, 332, , 336
ESP10, 320, 369, 390, 424, 456, 335, , 339
ESP10, 322, 372, 395, 427, 459, 337, , 341
ESP10, 319, 375, 396, 425, 457, 339, , 343
ESP10, 315, 371, 394, 422, 455, 342, , 346
ESP10, 316, 371, 399, 424, 455, 344, , 348
ESP10, 321, 376, 401, 426, 456, 347, , 351
ESP10, 316, 373, 395, 423, 452, 349, , 353
ESP10, 312, 370, 391, 419, 448, 351, , 355
ESP10, 318, 373, 392, 422, 453, 354, , 358
ESP10, 318, 374, 393, 422, 455, 356, , 360
ESP10, 320, 376, 396, 423, 457, 359, , 363
ESP10, 326, 382, 400, 426, 465, 361, , 365
ESP10, 326, 383, 399, 425, 466, 363, , 367
ESP10, 330, 381, 398, 422, 465, 366, , 370
ESP10, 335, 381, 398, 421, 465, 368, , 372
ESP10, 332, 379, 398, 420, 464, 371, , 375
ESP10, 335, 380, 399, 421, 464, 373, , 377
ESP10, 337, 382, 398, 420, 463, 375, , 379
ESP10, 331, 372, 387, 412, 453, 378, , 382
ESP10, 339, 382, 398, 424, 459, 380, , 384
ESP10, 339, 383, 400, 423, 456, 383, , 387
ESP10, 346, 386, 405, 427, 459, 385, , 389
ESP10, 353, 391, 413, 430, 463, 387, , 391
ESP10, 353, 392, 412, 429, 462, 390, , 394
ESP10, 353, 398, 413, 430, 461, 392, , 396
ESP10, 342, 385, 400, 420, 449, 395, , 399
ESP10, 336, 377, 394, 413, 442, 397, , 401
ESP10, 333, 373, 391, 412, 438, 399, , 403
ESP10, 335, 375, 396, 414, 440, 402, , 406
ESP10, 336, 375, 398, 413, 441, 404, , 408
ESP10, 340, 377, 400, 414, 443, 407, , 411
ESP10, 339, 378, 398, 416, 441, 409, , 413
ESP10, 335, 370, 393, 411, 437, 411, , 415
ESP10, 333, 361, 385, 408, 431, 414, , 418
ESP10, 343, 368, 391, 416, 439, 416, , 420
ESP10, 353, 379, 400, 425, 446, 419, , 423
ESP10, 356, 385, 403, 427, 448, 421, , 425
ESP10, 357, 385, 403, 426, 448, 423, , 427
ESP10, 355, 384, 403, 422, 445, 426, , 430
ESP10, 352, 378, 397, 416, 440, 428, , 432
ESP10, 349, 377, 396, 412, 435, 431, , 435
ESP10, 352, 380, 399, 414, 436, 433, , 437
ESP10, 353, 381, 400, 415, 436, 435, , 439
ESP10, 359, 385, 406, 418, 442, 438, , 442
ESP10, 353, 382, 398, 413, 435, 440, , 444
ESP10, 347, 376, 390, 411, 429, 443, , 447
ESP10, 338, 366, 380, 400, 419, 445, , 449
ESP10, 345, 372, 385, 404, 424, 447, , 451
ESP10, 349, 374, 389, 407, 427, 450, , 454
ESP10, 346, 374, 386, 405, 423, 452, , 456
ESP10, 342, 372, 383, 402, 419, 455, , 459
ESP10, 333, 366, 376, 394, 412, 457, , 461
ESP10, 333, 363, 371, 394, 407, 459, , 463
ESP10, 328, 354, 363, 389, 403, 462, , 466
ESP10, 324, 350, 360, 384, 402, 464, , 468
ESP10, 323, 347, 358, 380, 401, 467, , 471
ESP10, 322, 345, 357, 378, 400, 469, , 473
ESP10, 318, 342, 354, 373, 395, 471, , 475
ESP10, 321, 344, 359, 376, 399, 474, , 478
ESP10, 326, 348, 362, 379, 404, 476, , 480
ESP10, 319, 337, 352, 367, 393, 479, , 483
ESP10, 320, 335, 349, 362, 390, 481, , 485
ESP10, 315, 331, 346, 357, 385, 483, , 487
ESP10, 300, 316, 332, 345, 371, 486, , 490
ESP10, 299, 316, 332, 344, 370, 488, , 492
ESP10, 298, 316, 334, 348, 371, 491, , 495
ESP10, 305, 326, 343, 359, 379, 493, , 497
ESP10, 305, 328, 345, 363, 381, 495, , 499
ESP10, 310, 336, 353, 369, 386, 498, , 502
ESP10, 317, 342, 358, 375, 391, 500, , 504
ESP10, 320, 343, 359, 378, 392, 503, , 507
ESP10, 314, 340, 352, 371, 386, 505, , 509
ESP10, 318, 345, 355, 374, 391, 507, , 511
ESP10, 309, 338, 350, 367, 385, 510, , 514
ESP10, 304, 333, 347, 365, 382, 512, , 516
ESP10, 304, 333, 350, 367, 384, 515, , 519
ESP10, 307, 338, 354, 373, 388, 517, , 521
ESP10, 309, 342, 358, 375, 390, 519, , 523
ESP10, 307, 338, 355, 373, 388, 522, , 526
ESP10, 309, 340, 356, 373, 388, 524, , 528
ESP10, 310, 342, 357, 374, 387, 527, , 531
ESP10, 313, 345, 360, 377, 389, 529, , 533
ESP10, 312, 343, 359, 376, 388, 531, , 535
ESP10, 310, 339, 355, 372, 384, 534, , 538
ESP10, 312, 344, 354, 373, 383, 536, , 540
ESP10, 318, 350, 359, 379, 390, 539, , 543
ESP10, 324, 350, 361, 379, 390, 541, , 545
ESP10, 326, 352, 363, 382, 391, 543, , 547
ESP10, 322, 347, 360, 377, 387, 546, , 550
ESP10, 324, 347, 362, 378, 387, 548, , 552
ESP10, 324, 348, 363, 381, 389, 551, , 555
ESP10, 324, 348, 364, 381, 389, 553, , 557
ESP10, 329, 353, 370, 386, 394, 555, , 559
ESP10, 334, 357, 375, 391, 400, 558, , 562
ESP10, 336, 359, 377, 392, 404, 560, , 564
ESP10, 338, 362, 379, 395, 406, 563, , 567
ESP10, 334, 362, 376, 391, 404, 565, , 569
ESP10, 331, 362, 375, 388, 403, 567, , 571
ESP10, 330, 361, 375, 388, 402, 570, , 574
ESP10, 336, 368, 380, 393, 406, 572, , 576
ESP10, 335, 366, 380, 390, 404, 575, , 579
ESP10, 340, 370, 385, 397, 408, 577, , 581
ESP10, 330, 360, 375, 387, 398, 580, , 584
ESP10, 331, 361, 377, 391, 398, 582, , 586
ESP10, 330, 359, 375, 389, 395, 584, , 588
ESP10, 332, 355, 373, 386, 392, 587, , 591
ESP10, 327, 349, 366, 383, 385, 589, , 593
ESP10, 328, 349, 368, 383, 389, 592, , 596
ESP10, 338, 357, 377, 391, 401, 594, , 598
ESP10, 334, 355, 371, 386, 396, 596, , 600
ESP10, 343, 364, 378, 393, 401, 599, , 603
ESP10, 344, 363, 377, 393, 399, 601, , 605
ESP10, 346, 365, 377, 393, 399, 604, , 608
ESP10, 350, 371, 384, 397, 406, 606, , 610
ESP10, 348, 367, 384, 395, 403, 608, , 612
ESP10, 355, 370, 388, 399, 408, 611, , 615
ESP10, 357, 368, 387, 397, 406, 613, , 617
ESP10, 354, 366, 385, 394, 403, 616, , 620
ESP10, 353, 366, 384, 394, 401, 618, , 622
ESP10, 356, 370, 387, 395, 404, 620, , 624
ESP10, 359, 373, 390, 398, 409, 623, , 627
ESP10, 362, 377, 393, 401, 411, 625, , 629
ESP10, 365, 381, 391, 397, 409, 628, , 632
ESP10, 368, 386, 396, 403, 413, 630, , 634
ESP10, 365, 382, 393, 401, 409, 632, , 636
ESP10, 366, 380, 394, 400, 409, 635, , 639
ESP10, 362, 374, 387, 395, 403, 637, , 641
ESP10, 364, 376, 387, 395, 402, 640, , 644
ESP10, 365, 377, 389, 396, 402, 642, , 646
ESP10, 369, 382, 392, 400, 406, 644, , 648
ESP10, 377, 387, 398, 406, 411, 647, , 651
ESP10, 380, 387, 400, 408, 414, 649, , 653
ESP10, 381, 389, 401, 408, 415, 652, , 656
ESP10, 382, 390, 400, 409, 414, 654, , 658
ESP10, 382, 390, 397, 407, 412, 656, , 660
ESP10, 388, 396, 404, 412, 418, 659, , 663
ESP10, 386, 394, 401, 411, 416, 661, , 665
ESP10, 384, 392, 400, 409, 414, 664, , 668
ESP10, 386, 391, 398, 408, 412, 666, , 670
ESP10, 391, 398, 404, 413, 417, 668, , 672
ESP10, 387, 396, 404, 407, 409, 692, , 696
ESP10, 389, 398, 405, 409, 411, 695, , 699
ESP10, 388, 399, 405, 408, 411, 697, , 701
ESP10, 392, 404, 409, 412, 415, 700, , 704
ESP10, 395, 406, 412, 416, 419, 702, , 706
ESP10, 398, 407, 413, 416, 419, 704, , 708
ESP10, 401, 410, 414, 419, 421, 707, , 711
ESP10, 403, 410, 415, 420, 422, 709, , 713
ESP10, 402, 410, 415, 418, 421, 712, , 716
ESP10, 404, 414, 418, 421, 423, 714, , 718
ESP10, 404, 414, 418, 420, 423, 716, , 720
ESP10, 405, 413, 417, 420, 422, 719, , 723
ESP10, 409, 415, 419, 423, 424, 721, , 725
ESP10, 409, 414, 420, 422, 423, 724, , 728
ESP10, 411, 415, 421, 423, 424, 726, , 730
ESP10, 409, 413, 419, 421, 422, 728, , 732
ESP10, 410, 414, 420, 422, 424, 731, , 735
ESP10, 411, 415, 420, 422, 424, 733, , 737
Max Scale
Scale To Data
Scale To Last 45 Days
Show Min/Max Ensemble Volume
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ESP10
HEFS
ESP0
Data Files
/chpsesp/ensemble/watersupply/RISW1W_SQIN.ESPF10.csv
RISW1W_SQIN.ESPF0.csv|2025-07-05
RISW1W_SQIN.ESPF10.csv|2025-07-05
RISW1W_SQIN.ESPFM.csv|2025-07-05
APR-SEP
COLUMBIA - BLO ROCK ISLAND DAM
(
RISW1
)
Forecasts for Water Year
2026
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2025-07-05
Issued:
2025-07-05
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
50213
62974
93
82889
67524
APR-JUL
42700
52728
91
69793
58256
JAN-SEP
57013
70022
90
90830
77708
JAN-JUL
49319
61352
90
78165
68440
OCT-SEP
64489
80148
92
100250
87167
Move the mouse over the desired "Forecast Period" to display a graph.
Max Scale
Scale To Data
Scale To Last 45 Days
Show Min/Max Ensemble Volume
Show Tooltips Help
Overlay
ESP10
Data Files
/chpsesp/ensemble/watersupply/RISW1W_SQIN.ESPF10.csv
RISW1W_SQIN.ESPF0.csv|2025-07-05
RISW1W_SQIN.ESPF10.csv|2025-07-05
RISW1W_SQIN.ESPFM.csv|2025-07-05
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast
